react-xml-viewer
Version:
Simple xml viewer component for React
6 lines • 51.4 kB
JavaScript
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me=n=>W.includes(n)?"__"+n:n,ut={preserveOrder:!1,attributeNamePrefix:"@_",attributesGroupName:!1,textNodeName:"#text",ignoreAttributes:!0,removeNSPrefix:!1,allowBooleanAttributes:!1,parseTagValue:!0,parseAttributeValue:!1,trimValues:!0,cdataPropName:!1,numberParseOptions:{hex:!0,leadingZeros:!0,eNotation:!0},tagValueProcessor:function(n,e){return e},attributeValueProcessor:function(n,e){return e},stopNodes:[],alwaysCreateTextNode:!1,isArray:()=>!1,commentPropName:!1,unpairedTags:[],processEntities:!0,htmlEntities:!1,entityDecoder:null,ignoreDeclaration:!1,ignorePiTags:!1,transformTagName:!1,transformAttributeName:!1,updateTag:function(n,e,t){return n},captureMetaData:!1,maxNestedTags:100,strictReservedNames:!0,jPath:!0,onDangerousProperty:me};function ct(n,e){if(typeof n!="string")return;const t=n.toLowerCase();if(W.some(r=>t===r.toLowerCase()))throw new Error(`[SECURITY] Invalid ${e}: "${n}" is a reserved JavaScript keyword that could cause prototype 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mt{constructor(e,t){this.suppressValidationErr=!e,this.options=e,this.xmlVersion=t||1}setXmlVersion(e=1){this.xmlVersion=e}readDocType(e,t){const r=Object.create(null);let s=0;if(e[t+3]==="O"&&e[t+4]==="C"&&e[t+5]==="T"&&e[t+6]==="Y"&&e[t+7]==="P"&&e[t+8]==="E"){t=t+9;let i=1,a=!1,o=!1,l="";for(;t<e.length;t++)if(e[t]==="<"&&!o){if(a&&P(e,"!ENTITY",t)){t+=7;let h,u;if([h,u,t]=this.readEntityExp(e,t+1,this.suppressValidationErr),u.indexOf("&")===-1){if(this.options.enabled!==!1&&this.options.maxEntityCount!=null&&s>=this.options.maxEntityCount)throw new Error(`Entity count (${s+1}) exceeds maximum allowed (${this.options.maxEntityCount})`);r[h]=u,s++}}else if(a&&P(e,"!ELEMENT",t)){t+=8;const{index:h}=this.readElementExp(e,t+1);t=h}else if(a&&P(e,"!ATTLIST",t))t+=8;else if(a&&P(e,"!NOTATION",t)){t+=9;const{index:h}=this.readNotationExp(e,t+1,this.suppressValidationErr);t=h}else if(P(e,"!--",t))o=!0;else throw new Error("Invalid DOCTYPE");i++,l=""}else if(e[t]===">"){if(o?e[t-1]==="-"&&e[t-2]==="-"&&(o=!1,i--):i--,i===0)break}else e[t]==="["?a=!0:l+=e[t];if(i!==0)throw new Error("Unclosed DOCTYPE")}else throw new Error("Invalid Tag instead of DOCTYPE");return{entities:r,i:t}}readEntityExp(e,t){t=C(e,t);const r=t;for(;t<e.length&&!/\s/.test(e[t])&&e[t]!=='"'&&e[t]!=="'";)t++;let s=e.substring(r,t);if($(s,{xmlVersion:this.xmlVersion}),t=C(e,t),!this.suppressValidationErr){if(e.substring(t,t+6).toUpperCase()==="SYSTEM")throw new Error("External entities are not supported");if(e[t]==="%")throw new Error("Parameter entities are not supported")}let i="";if([t,i]=this.readIdentifierVal(e,t,"entity"),this.options.enabled!==!1&&this.options.maxEntitySize!=null&&i.length>this.options.maxEntitySize)throw new Error(`Entity "${s}" size (${i.length}) exceeds maximum allowed size (${this.options.maxEntitySize})`);return t--,[s,i,t]}readNotationExp(e,t){t=C(e,t);const r=t;for(;t<e.length&&!/\s/.test(e[t]);)t++;let s=e.substring(r,t);!this.suppressValidationErr&&$(s,{xmlVersion:this.xmlVersion}),t=C(e,t);const i=e.substring(t,t+6).toUpperCase();if(!this.suppressValidationErr&&i!=="SYSTEM"&&i!=="PUBLIC")throw new Error(`Expected SYSTEM or PUBLIC, found "${i}"`);t+=i.length,t=C(e,t);let a=null,o=null;if(i==="PUBLIC")[t,a]=this.readIdentifierVal(e,t,"publicIdentifier"),t=C(e,t),(e[t]==='"'||e[t]==="'")&&([t,o]=this.readIdentifierVal(e,t,"systemIdentifier"));else if(i==="SYSTEM"&&([t,o]=this.readIdentifierVal(e,t,"systemIdentifier"),!this.suppressValidationErr&&!o))throw new Error("Missing mandatory system identifier for SYSTEM notation");return{notationName:s,publicIdentifier:a,systemIdentifier:o,index:--t}}readIdentifierVal(e,t,r){let s="";const i=e[t];if(i!=='"'&&i!=="'")throw new Error(`Expected quoted string, found "${i}"`);t++;const a=t;for(;t<e.length&&e[t]!==i;)t++;if(s=e.substring(a,t),e[t]!==i)throw new Error(`Unterminated ${r} value`);return t++,[t,s]}readElementExp(e,t){t=C(e,t);const r=t;for(;t<e.length&&!/\s/.test(e[t]);)t++;let s=e.substring(r,t);if(!this.suppressValidationErr&&!Ce(s,{xmlVersion:this.xmlVersion}))throw new Error(`Invalid element name: "${s}"`);t=C(e,t);let i="";if(e[t]==="E"&&P(e,"MPTY",t))t+=4;else if(e[t]==="A"&&P(e,"NY",t))t+=2;else if(e[t]==="("){t++;const a=t;for(;t<e.length&&e[t]!==")";)t++;if(i=e.substring(a,t),e[t]!==")")throw new Error("Unterminated content model")}else if(!this.suppressValidationErr)throw new Error(`Invalid Element Expression, found "${e[t]}"`);return{elementName:s,contentModel:i.trim(),index:t}}readAttlistExp(e,t){t=C(e,t);let r=t;for(;t<e.length&&!/\s/.test(e[t]);)t++;let s=e.substring(r,t);for($(s,{xmlVersion:this.xmlVersion}),t=C(e,t),r=t;t<e.length&&!/\s/.test(e[t]);)t++;let i=e.substring(r,t);if(!$(i,{xmlVersion:this.xmlVersion}))throw new Error(`Invalid attribute name: "${i}"`);t=C(e,t);let a="";if(e.substring(t,t+8).toUpperCase()==="NOTATION"){if(a="NOTATION",t+=8,t=C(e,t),e[t]!=="(")throw new Error(`Expected '(', found "${e[t]}"`);t++;let l=[];for(;t<e.length&&e[t]!==")";){const h=t;for(;t<e.length&&e[t]!=="|"&&e[t]!==")";)t++;let u=e.substring(h,t);if(u=u.trim(),!$(u,{xmlVersion:this.xmlVersion}))throw new Error(`Invalid notation name: "${u}"`);l.push(u),e[t]==="|"&&(t++,t=C(e,t))}if(e[t]!==")")throw new Error("Unterminated list of notations");t++,a+=" ("+l.join("|")+")"}else{const l=t;for(;t<e.length&&!/\s/.test(e[t]);)t++;a+=e.substring(l,t);const h=["CDATA","ID","IDREF","IDREFS","ENTITY","ENTITIES","NMTOKEN","NMTOKENS"];if(!this.suppressValidationErr&&!h.includes(a.toUpperCase()))throw new Error(`Invalid attribute type: "${a}"`)}t=C(e,t);let o="";return e.substring(t,t+8).toUpperCase()==="#REQUIRED"?(o="#REQUIRED",t+=8):e.substring(t,t+7).toUpperCase()==="#IMPLIED"?(o="#IMPLIED",t+=7):[t,o]=this.readIdentifierVal(e,t,"ATTLIST"),{elementName:s,attributeName:i,attributeType:a,defaultValue:o,index:t}}}const C=(n,e)=>{for(;e<n.length&&/\s/.test(n[e]);)e++;return e};function P(n,e,t){for(let r=0;r<e.length;r++)if(e[r]!==n[t+r+1])return!1;return!0}function $(n,e){if(Ce(n,{xmlVersion:e}))return n;throw new Error(`Invalid entity name ${n}`)}const yt=/^[-+]?0x[a-fA-F0-9]+$/,Et=/^0b[01]+$/,Nt=/^0o[0-7]+$/,wt=/^([\-\+])?(0*)([0-9]*(\.[0-9]*)?)$/,Ct={hex:!0,binary:!1,octal:!1,leadingZeros:!0,decimalPoint:".",eNotation:!0,infinity:"original"};function Tt(n,e={}){if(e=Object.assign({},Ct,e),!n||typeof n!="string")return n;let t=n.trim();if(t.length===0)return n;if(e.skipLike!==void 0&&e.skipLike.test(t))return n;if(t==="0")return 0;if(e.hex&&yt.test(t))return K(t,16);if(e.binary&&Et.test(t))return K(t,2);if(e.octal&&Nt.test(t))return K(t,8);if(isFinite(t)){if(t.includes("e")||t.includes("E"))return St(n,t,e);{const r=wt.exec(t);if(r){const s=r[1]||"",i=r[2];let a=vt(r[3]);const o=s?n[i.length+1]===".":n[i.length]===".";if(!e.leadingZeros&&(i.length>1||i.length===1&&!o))return n;{const l=Number(t),h=String(l);if(l===0)return l;if(h.search(/[eE]/)!==-1)return e.eNotation?l:n;if(t.indexOf(".")!==-1)return h==="0"||h===a||h===`${s}${a}`?l:n;let u=i?a:t;return i?u===h||s+u===h?l:n:u===h||u===s+h?l:n}}else return n}}else return At(n,Number(t),e)}const _t=/^([-+])?(0*)(\d*(\.\d*)?[eE][-\+]?\d+)$/;function St(n,e,t){if(!t.eNotation)return n;const r=e.match(_t);if(r){let s=r[1]||"";const i=r[3].indexOf("e")===-1?"E":"e",a=r[2],o=s?n[a.length+1]===i:n[a.length]===i;return a.length>1&&o?n:a.length===1&&(r[3].startsWith(`.${i}`)||r[3][0]===i)?Number(e):a.length>0?t.leadingZeros&&!o?(e=(r[1]||"")+r[3],Number(e)):n:Number(e)}else return n}function vt(n){return n&&n.indexOf(".")!==-1&&(n=n.replace(/0+$/,""),n==="."?n="0":n[0]==="."?n="0"+n:n[n.length-1]==="."&&(n=n.substring(0,n.length-1))),n}function K(n,e){const t=n.trim();if((e===2||e===8)&&(n=t.substring(2)),parseInt)return parseInt(n,e);if(Number.parseInt)return Number.parseInt(n,e);if(window&&window.parseInt)return window.parseInt(n,e);throw new Error("parseInt, Number.parseInt, window.parseInt are not supported")}function At(n,e,t){const r=e===1/0;switch(t.infinity.toLowerCase()){case"null":return null;case"infinity":return e;case"string":return r?"Infinity":"-Infinity";case"original":default:return n}}function It(n){return typeof n=="function"?n:Array.isArray(n)?e=>{for(const t of n)if(typeof t=="string"&&e===t||t instanceof RegExp&&t.test(e))return!0}:()=>!1}class Te{constructor(e,t={},r){this.pattern=e,this.separator=t.separator||".",this.segments=this._parse(e),this.data=r,this._hasDeepWildcard=this.segments.some(s=>s.type==="deep-wildcard"),this._hasAttributeCondition=this.segments.some(s=>s.attrName!==void 0),this._hasPositionSelector=this.segments.some(s=>s.position!==void 0)}_parse(e){const t=[];let r=0,s="";for(;r<e.length;)e[r]===this.separator?r+1<e.length&&e[r+1]===this.separator?(s.trim()&&(t.push(this._parseSegment(s.trim())),s=""),t.push({type:"deep-wildcard"}),r+=2):(s.trim()&&t.push(this._parseSegment(s.trim())),s="",r++):(s+=e[r],r++);return s.trim()&&t.push(this._parseSegment(s.trim())),t}_parseSegment(e){const t={type:"tag"};let r=null,s=e;const i=e.match(/^([^\[]+)(\[[^\]]*\])(.*)$/);if(i&&(s=i[1]+i[3],i[2])){const u=i[2].slice(1,-1);u&&(r=u)}let a,o=s;if(s.includes("::")){const u=s.indexOf("::");if(a=s.substring(0,u).trim(),o=s.substring(u+2).trim(),!a)throw new Error(`Invalid namespace in pattern: ${e}`)}let l,h=null;if(o.includes(":")){const u=o.lastIndexOf(":"),c=o.substring(0,u).trim(),d=o.substring(u+1).trim();["first","last","odd","even"].includes(d)||/^nth\(\d+\)$/.test(d)?(l=c,h=d):l=o}else l=o;if(!l)throw new Error(`Invalid segment pattern: ${e}`);if(t.tag=l,a&&(t.namespace=a),r)if(r.includes("=")){const u=r.indexOf("=");t.attrName=r.substring(0,u).trim(),t.attrValue=r.substring(u+1).trim()}else t.attrName=r.trim();if(h){const u=h.match(/^nth\((\d+)\)$/);u?(t.position="nth",t.positionValue=parseInt(u[1],10)):t.position=h}return t}get length(){return this.segments.length}hasDeepWildcard(){return this._hasDeepWildcard}hasAttributeCondition(){return this._hasAttributeCondition}hasPositionSelector(){return this._hasPositionSelector}toString(){return this.pattern}}class xt{constructor(){this._byDepthAndTag=new Map,this._wildcardByDepth=new Map,this._deepWildcards=[],this._patterns=new Set,this._sealed=!1}add(e){if(this._sealed)throw new TypeError("ExpressionSet is sealed. Create a new ExpressionSet to add more expressions.");if(this._patterns.has(e.pattern))return this;if(this._patterns.add(e.pattern),e.hasDeepWildcard())return this._deepWildcards.push(e),this;const t=e.length,r=e.segments[e.segments.length-1],s=r==null?void 0:r.tag;if(!s||s==="*")this._wildcardByDepth.has(t)||this._wildcardByDepth.set(t,[]),this._wildcardByDepth.get(t).push(e);else{const i=`${t}:${s}`;this._byDepthAndTag.has(i)||this._byDepthAndTag.set(i,[]),this._byDepthAndTag.get(i).push(e)}return this}addAll(e){for(const t of e)this.add(t);return this}has(e){return this._patterns.has(e.pattern)}get size(){return this._patterns.size}seal(){return this._sealed=!0,this}get isSealed(){return this._sealed}matchesAny(e){return this.findMatch(e)!==null}findMatch(e){const t=e.getDepth(),r=e.getCurrentTag(),s=`${t}:${r}`,i=this._byDepthAndTag.get(s);if(i){for(let o=0;o<i.length;o++)if(e.matches(i[o]))return i[o]}const a=this._wildcardByDepth.get(t);if(a){for(let o=0;o<a.length;o++)if(e.matches(a[o]))return a[o]}for(let o=0;o<this._deepWildcards.length;o++)if(e.matches(this._deepWildcards[o]))return this._deepWildcards[o];return null}}class Pt{constructor(e){this._matcher=e}get separator(){return this._matcher.separator}getCurrentTag(){const e=this._matcher.path;return e.length>0?e[e.length-1].tag:void 0}getCurrentNamespace(){const e=this._matcher.path;return e.length>0?e[e.length-1].namespace:void 0}getAttrValue(e){var r;const t=this._matcher.path;if(t.length!==0)return(r=t[t.length-1].values)==null?void 0:r[e]}hasAttr(e){const t=this._matcher.path;if(t.length===0)return!1;const r=t[t.length-1];return r.values!==void 0&&e in r.values}getPosition(){const e=this._matcher.path;return e.length===0?-1:e[e.length-1].position??0}getCounter(){const e=this._matcher.path;return e.length===0?-1:e[e.length-1].counter??0}getIndex(){return this.getPosition()}getDepth(){return this._matcher.path.length}toString(e,t=!0){return this._matcher.toString(e,t)}toArray(){return this._matcher.path.map(e=>e.tag)}matches(e){return this._matcher.matches(e)}matchesAny(e){return e.matchesAny(this._matcher)}}class Mt{constructor(e={}){this.separator=e.separator||".",this.path=[],this.siblingStacks=[],this._pathStringCache=null,this._view=new Pt(this)}push(e,t=null,r=null){this._pathStringCache=null,this.path.length>0&&(this.path[this.path.length-1].values=void 0);const s=this.path.length;this.siblingStacks[s]||(this.siblingStacks[s]=new Map);const i=this.siblingStacks[s],a=r?`${r}:${e}`:e,o=i.get(a)||0;let l=0;for(const u of i.values())l+=u;i.set(a,o+1);const h={tag:e,position:l,counter:o};r!=null&&(h.namespace=r),t!=null&&(h.values=t),this.path.push(h)}pop(){if(this.path.length===0)return;this._pathStringCache=null;const e=this.path.pop();return this.siblingStacks.length>this.path.length+1&&(this.siblingStacks.length=this.path.length+1),e}updateCurrent(e){if(this.path.length>0){const 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this.path.map(i=>t&&i.namespace?`${i.namespace}:${i.tag}`:i.tag).join(r)}toArray(){return this.path.map(e=>e.tag)}reset(){this._pathStringCache=null,this.path=[],this.siblingStacks=[]}matches(e){const t=e.segments;return t.length===0?!1:e.hasDeepWildcard()?this._matchWithDeepWildcard(t):this._matchSimple(t)}_matchSimple(e){if(this.path.length!==e.length)return!1;for(let t=0;t<e.length;t++)if(!this._matchSegment(e[t],this.path[t],t===this.path.length-1))return!1;return!0}_matchWithDeepWildcard(e){let t=this.path.length-1,r=e.length-1;for(;r>=0&&t>=0;){const s=e[r];if(s.type==="deep-wildcard"){if(r--,r<0)return!0;const i=e[r];let a=!1;for(let o=t;o>=0;o--)if(this._matchSegment(i,this.path[o],o===this.path.length-1)){t=o-1,r--,a=!0;break}if(!a)return!1}else{if(!this._matchSegment(s,this.path[t],t===this.path.length-1))return!1;t--,r--}}return r<0}_matchSegment(e,t,r){if(e.tag!=="*"&&e.tag!==t.tag||e.namespace!==void 0&&e.namespace!=="*"&&e.namespace!==t.namespace||e.attrName!==void 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e=n.indexOf(":");if(e!==-1&&e>0){const t=n.substring(0,e);if(t!=="xmlns")return t}}class Ft{constructor(e,t){this.options=e,this.currentNode=null,this.tagsNodeStack=[],this.parseXml=Bt,this.parseTextData=Lt,this.resolveNameSpace=Vt,this.buildAttributesMap=jt,this.isItStopNode=zt,this.replaceEntitiesValue=Ut,this.readStopNodeData=qt,this.saveTextToParentTag=Wt,this.addChild=Xt,this.ignoreAttributesFn=It(this.options.ignoreAttributes),this.entityExpansionCount=0,this.currentExpandedLength=0;let r={...ge};this.options.entityDecoder?this.entityDecoder=this.options.entityDecoder:(typeof this.options.htmlEntities=="object"?r=this.options.htmlEntities:this.options.htmlEntities===!0&&(r={...rt,...nt}),this.entityDecoder=new lt({namedEntities:{...r,...t},numericAllowed:this.options.htmlEntities,limit:{maxTotalExpansions:this.options.processEntities.maxTotalExpansions,maxExpandedLength:this.options.processEntities.maxExpandedLength,applyLimitsTo:this.options.processEntities.appliesTo}})),this.matcher=new Mt,this.readonlyMatcher=this.matcher.readOnly(),this.isCurrentNodeStopNode=!1,this.stopNodeExpressionsSet=new xt;const s=this.options.stopNodes;if(s&&s.length>0){for(let i=0;i<s.length;i++){const a=s[i];typeof a=="string"?this.stopNodeExpressionsSet.add(new Te(a)):a instanceof Te&&this.stopNodeExpressionsSet.add(a)}this.stopNodeExpressionsSet.seal()}}}function Lt(n,e,t,r,s,i,a){const o=this.options;if(n!==void 0&&(o.trimValues&&!r&&(n=n.trim()),n.length>0)){a||(n=this.replaceEntitiesValue(n,e,t));const l=o.jPath?t.toString():t,h=o.tagValueProcessor(e,n,l,s,i);return h==null?n:typeof h!=typeof n||h!==n?h:o.trimValues||n.trim()===n?G(n,o.parseTagValue,o.numberParseOptions):n}}function 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